This book offers an insightful overview of commitment research accumulated over the past decades. For researchers and practitioners, it provides an exceptional guide into what we know about commitment components, targets, levels, antecedents, and dynamics, and how they can be managed for the benefit of employees and organizations alike. -- Christian Vandenberghe, HEC Montréal, Canada John Meyer has done more for understanding organizational commitments in the last four decades than any other researcher. Quite simply, this book is an absolute must read! -- Julian Barling, Queen's University, Canada This should be called the Comprehensive Introduction. It is comprehensive: (1) in explicating the various kinds of work-related commitments (e.g., to organizations, occupations, etc.); (2) in detailing the methodological issues in studying commitments; (3) in clarifying the levels of analysis of such commitments research; and (4) in providing implications for practice. This is an amazingly readable and comprehensive book. -- Benjamin Schneider, University of Maryland, US